On Fri, 24 Jun 2022, Andrew Pinski via Gcc-patches wrote: > Though I do find that -E/-F have been part of the POSIX standard since > at least 2004 which is interesting.
grep -E and -F are already defined, and egrep and fgrep marked as obsolescent, in the 1992/1993 edition of POSIX.2. -- Joseph S. Myers jos...@codesourcery.com